Increased salivation in Dogs
When to visit the vet?
Urgent see a veterinarian within 24 hours
RED FLAG for breathing/swallowing problems, suspected foreign body/chemical burn, rapid deterioration, seizure/altered consciousness, or if the dog cannot swallow.
Unsure about what’s wrong with your pet? Feel free to use our Symptom Checker for more clarity
Definition
Increased salivation in dogs, also known as hypersalivation or ptyalism, refers to an excessive production and secretion of saliva by the salivary glands, which usually leaves visible streaks of saliva around the dog’s mouth.
Can Occur with the Following Diseases:
- Foreign Object in the Stomach in Dogs (Gastric Foreign Body)
- Toxic Waste Buildup in the Body in Dogs (Uremia)
- Disorder of the Nerve Controlling the Jaw and Facial Sensation in Dogs (Trigeminal Neuropathy)
- Saliva-Filled Swelling Under the Tongue in Dogs (Sublingual Salivary Mucocele, Ranula)
- Salivary Gland Inflammation in Dogs (Sialadenitis)
- Acid Reflux in Dogs (Gastroesophageal Reflux)
- Rabies in Dogs (Rabies Virus Infection)
- Mumps in Dogs (Mumps Virus Parotitis)
- Tongue Cancer in Dogs (Lingual Squamous Cell Carcinoma)
- Mouth Growths in Dogs (Benign, Dysplastic, and Malignant Oral Masses)
- Inflamed Esophagus in Dogs (Esophagitis)
- Inherited Drug Sensitivity in Dogs (MDR1/ABCB1 Mutation)
- Mouth Cancer in Dogs (Oral Melanoma, Squamous Cell Carcinoma, and Fibrosarcoma)
- Brain Dysfunction Related to Liver Disease in Dogs (Hepatic Encephalopathy)
- Gum Connective Tissue Cancer in Dogs (Gingival Fibrosarcoma)
- Chewing Muscle Inflammation in Dogs (Masticatory Muscle Myositis)
- Balance Disorder Present at Birth in Dogs (Congenital Vestibular Syndrome)
- Painful Bone Overgrowth of the Skull and Jaw in Dogs (Craniomandibular Osteopathy, CMO)
- Jaw Joint Problems in Dogs (Temporomandibular Joint Disorders)
- Gum Growths in Dogs (Epulis)
- Recurring Seizures in Dogs (Epilepsy)
- Object Stuck in the Food Pipe in Dogs (Esophageal Foreign Body)
- Stomach Telescoping into the Food Pipe in Dogs (Gastroesophageal Intussusception)
- Stomach Herniating through the Diaphragm in Dogs (Hiatal Hernia)
- Severe Overheating in Dogs (Heatstroke)
- Tooth Decay in Dogs (Dental Caries)
- Motion Sickness in Dogs (Kinetosis)
- Broken Jaw in Dogs (Jaw Fracture)
- Cartilage Cancer of the Mouth in Dogs (Oral Chondrosarcoma)
- Severe Allergic Reaction in Dogs (Anaphylaxis)
- Pseudorabies in Dogs (Aujeszky's Disease)
- Breathing Problems in Flat-Faced Dogs (Brachycephalic Obstructive Airway Syndrome, BOAS)
- Candida Yeast Infection in Dogs (Candidiasis)
- Chronic Mouth Inflammation and Ulcers in Dogs (Canine Chronic Ulcerative Stomatitis, CCUS)
- Salivary Gland Cancer in Dogs (Salivary Gland Adenocarcinoma)
- Sudden Loss of Kidney Function in Dogs (Acute Kidney Injury, AKI)
- Benign Mouth Tumor in Dogs (Oral Ameloblastoma)
- Acute Liver Failure in Dogs (Acute Hepatic Failure)
- Gum Cancer in Dogs (Gingival Squamous Cell Carcinoma)
- Bloat with a Twisted Stomach in Dogs (Gastric Dilatation-Volvulus, GDV)
Basics and possible causes
Saliva plays an important role in a dog’s digestion and oral hygiene. It contains enzymes that help break down food and acts as a lubricant that makes swallowing easier. Normal saliva flow is therefore essential for healthy digestion and your dog’s well-being.
Excessive salivation can be caused by a wide range of factors. In some cases, the cause is harmless, such as excitement or waiting for a meal. In other cases, however, it can be a sign of an underlying health problem that requires veterinary treatment.
A common cause of excessive salivation is dental problems. Gum disease, tooth decay, or tooth abscesses can cause inflammatory conditions and pain, leading to increased saliva production. Foreign objects in the mouth, such as splinters or small stones, can also increase saliva production because the body is trying to flush the object out.
Another possible cause is irritation or injury to the oral mucosa, for example from chemical substances or toxic plants. Infections in the mouth area, such as fungal infections or bacterial infections, can also lead to hypersalivation.
Digestive tract disorders, such as nausea or gastrointestinal disease, can also be a cause of excessive salivation. In such cases, the increased saliva flow is often a precursor to vomiting. Neurological disorders that affect the control of the salivary glands can also cause hypersalivation.
Poisoning, especially from ingesting toxic substances, is a serious cause of excessive salivation. Some toxins irritate the mucous membranes or the central nervous system and lead to increased saliva production.
Typical accompanying symptoms
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Restless behavior: Frequent shaking of the head or rubbing of the face may indicate discomfort or pain in the mouth area.
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Bad breath: An unpleasant smell from the mouth can indicate dental problems or an infection.
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Difficulty eating: Dogs with pain in the mouth area or nausea may be hesitant to eat or may not eat at all.
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Vomiting: In cases of gastrointestinal problems or poisoning, vomiting may occur along with increased salivation.
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Tooth pain: Dogs may frequently bring their paws to their mouths or chew more on a particular tooth.
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Swollen or inflamed mucous membranes: Visible Inflammatory conditions in the mouth can indicate an infection or an injury.
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Verändertes Verhalten: Allgemeine Unruhe, Rückzug oder Aggressivität können ebenfalls auf Schmerzen oder Unwohlsein hindeuten.
When to visit the vet?
A vet visit is urgently needed if excessive salivation is accompanied by other serious symptoms, such as vomiting, diarrhea, severe bad breath, or obvious pain. A sudden change in behavior or appetite should also be treated as a warning sign.
If you suspect that your dog has ingested a toxic substance, you should seek veterinary attention immediately, as some poisonings can be life-threatening and require immediate medical attention.
A veterinarian should also be consulted for persistent increased salivation that lasts longer than a few days to rule out underlying medical problems.
Symptom recognition for animal owners and veterinary diagnostic procedures
As a pet owner, you can easily recognize increased saliva production if you notice that your dog constantly has saliva dripping from their mouth or their face is often wet. Also watch for other Behavioral changes, such as restlessness or difficulty eating.
The vet will first take a thorough medical history, asking you about how long the excessive salivation has been going on, the circumstances around it, and any other symptoms. A thorough physical exam, especially of the mouth and throat, will be performed to rule out obvious causes such as dental problems or foreign objects.
Depending on what is suspected, further diagnostic tests may be needed, including blood tests, X-rays, or ultrasound to rule out infection, poisoning, or systemic disease. Saliva samples can also be examined to identify infectious pathogens.
In some cases, a neurological test may also be performed to detect possible disorders of the nervous system that could affect salivation.
What can pet owners do and professional therapy options
As a pet owner, you can take some measures to provide relief to your dog while waiting for the vet appointment. Make sure your dog has enough water available, as excessive salivation can lead to dehydration. Offer small, soft meals that are easier to chew and swallow, especially if dental problems are suspected.
Avoid giving your dog potentially irritating or chemical substances that could worsen the condition. Keep the mouth area clean and dry to prevent skin irritation from constant contact with saliva.
If you suspect your dog has ingested a toxic substance, try to identify the source of the poisoning and, if possible, bring information about the toxin with you to the vet. This can help with rapid diagnosis and treatment.
Monitor your dog’s condition closely and write down any changes or new symptoms that occur, so you can give the vet a comprehensive overview that may help with diagnosis.
Outlook on current research
Current research on excessive salivation in dogs is looking at various aspects that could contribute to a better understanding of this symptom. One of the main lines of research focuses on the neurological and physiological mechanisms that regulate saliva flow. Scientists are investigating how the autonomic nervous system and certain neurotransmitter influence saliva flow in order to identify possible therapeutic approaches.
Another area of research examines the genetic predisposition to excessive salivation in certain dog breeds. Studies show that some breeds, due to their anatomical features such as skull shape or the structure of their salivary glands, are more prone to increased salivation. Researchers are trying to identify genetic markers that could explain this susceptibility, which in the long term could lead to more targeted breeding strategies.
In addition, studies are also looking at the role of environmental factors and diet in influencing saliva flow in dogs. Some studies suggest that certain nutrients or feed additives could regulate saliva flow. Stress and emotional factors are also being researched as possible triggers for excessive salivation. These studies could lead to non-drug approaches to controlling the symptom.
In addition, the role of infections and Inflammatory conditions in the mouth as triggers of increased salivation is being further investigated. The focus here is on how bacterial or viral pathogens impair salivary gland function. Advances in this area could lead to better diagnostic methods and treatment options.
Another interesting field of research is investigating possible links between excessive salivation and systemic diseases such as kidney disease or diabetes. Scientists are trying to find out to what extent increased salivation could be an early sign of such diseases, which would significantly improve diagnostics.
Finally, the effectiveness of various therapeutic approaches is also being studied, including drug treatments and alternative methods such as acupuncture or homeopathy. The goal is to find safe and effective ways to control saliva flow without significant side effects.